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|Wood plastic processing process:
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|Auteur:||qizhen111 [ 16 Mar 2017, 04:11 ]|
|Sujet du message:||Wood plastic processing process:|
Some of the artificial zeolites can be added to the polymer. This aluminosilicate molecule captures the powder to absorb the odor in the material. Through the powder in a large number of crystal voids, the adsorbent can capture the odor of organic small molecules. Molecular trapping adsorbents have been successfully applied to polyolefin extruded tubing, injection and extrusion blown containers, isolated packaging materials, extruded packaging and sealing materials. The molecularly adsorbed powder can also be added as a dehumidifier to the plastic to remove water vapor.
Extruded products of different sizes and shapes increase the diversity of wood-plastic composites When the profiles are not required to have a continuous sheet-like structure or the components have a complex structural design, the wood-plastic profile can be either molded by injection or molded. Processors are sometimes faced with the problem of how the wood-plastic material is fully charged during processing. In order to solve this problem, they need to reduce the amount of wood filler to increase the melt flow.
Since 200 ° C is the upper limit of the operating temperature of the wood-plastic composite, some resins with a melting point of more than 200 ° C, such as PET, can not be used in wood-plastic composites. Water vapor will degrade the properties of the composite and also contribute to the breeding of microorganisms, so water vapor must be removed before using the wood filler. Before processing the wood filler to be dried, the general requirements of the treated water vapor content is less than 1 ~ 2%. Now the wood-plastic composite processing machinery is equipped with feeding equipment, drying equipment, extrusion equipment and molding equipment, there are some necessary downstream equipment such as cooling water tanks, traction equipment and cutting equipment.
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